889 B
889 B
Signals
Seastar provides an interface to handle signals natively and safely as asynchronous tasks.
It provides a dedicated header called seastar/core/signal.hh.
Usage
You should call seastar::handle_signal procedure in order to register the provided signal handler for the specified signal based on the configuration params.
The procedure must be called inside the app.run() lambda, otherwise it's UB.
Examples
#include <seastar/core/app-template.hh>
#include <seastar/core/signal.hh>
int main(int argc, char** argv) {
seastar::app_template app;
return app.run(argc, argv, [] {
seastar::handle_signal(SIGINT, [&] {
std::cout << "caught sigint\n";
}, true);
});
}